1、JEDEC STANDARD 1.8 V 0.15 V (Normal Range) and 1.2 V - 1.95 V (Wide Range) Power Supply Voltage and Interface Standard for Nonterminated Digital Integrated Circuits JESD8-7A (Revision of JESD8-7, February 1997) JUNE 2006 JEDEC SOLID STATE TECHNOLOGY ASSOCIATION NOTICE JEDEC standards and publication
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10、on, Virginia 22201-3834 or call (703) 907-7559 JEDEC Standard No. 8-7A -i- 1.8 V 0.15 V (NORMAL RANGE), AND 1.2-1.95 V (WIDE RANGE) POWER SUPPLY VOLTAGE AND INTERFACE STANDARD FOR NONTERMINATED DIGITAL INTEGRATED CIRCUIT Contents Page 1 Scope 1 2 Standard specifications 1 2.1 Absolute maximum contin
11、uous ratings (Note 1) 1 2.2 Recommended operating conditions 2 2.2.1 Normal range 2 2.2.2 Wide range 2 2.3 dc Specifications 2 2.3.1 Normal range 2 2.3.2 Wide range 2 2.4 Optional DC electrical characteristics for Schmitt trigger operation 3 2.4.1 Optional Schmitt trigger operation - Normal range 3
12、2.4.2 Optional Schmitt trigger operation - Wide range 3 3 Test conditions for optional Schmitt trigger operation 4 3.1 Positive Going Threshold Voltage: Vt+ (Vp) 4 3.2 Negative Going Threshold Voltage: Vt- (Vn) 4 Annex A Differences between JESD8-7A and JESD8-7 5 Figures 1 DC characteristic measurem
13、ent circuit of Schmitt trigger input 4 JEDEC Standard No. 8-7A -ii- JEDEC Standard No. 8-7A Page 1 1.8 V 0.15 V (NORMAL RANGE) AND 1.2 V - 1.95 V (WIDE RANGE) POWER SUPPLY VOLTAGE AND INTERFACE STANDARD FOR NONTERMINATED DIGITAL INTEGRATED CIRCUITS (From JEDEC Board Ballots JCB-96-29 and JCB-05-78,
14、formulated under the cognizance of the JC-16 Committee on Interface Technology.) 1 Scope This standard defines power supply voltages, dc interface and switching parameters for a high speed, low voltage family of non-terminated digital circuits driving/driven by parts of the same family, or mixed fam
15、ilies which comply with the input/output interface specifications. The specifications in this standard represent a minimum set of interface specifications for CMOS compatible circuits, they also allow limited interoperability with JESD8-6 compliant HSTL devices. The purpose is to provide a standard
16、of specification for uniformity, multiplicity of sources, elimination of confusion, and ease of device specification and design by users. Paragraph 2.3 describes normal DC electrical characteristics and paragraph 2.4 (added into revision A) describes the optional characteristics for Schmitt trigger
17、operation. 2 Standard specifications All voltages are referenced to ground except where noted. A given part may be specified as a normal range part, a wide range part, or both. 2.1 Absolute maximum continuous ratings Supply Voltage, VDD-0.5 V to 2.5 V dc Input Voltage, VIN(except I/O pins)(note 1 an
18、d 2) -0.5 V to VDD+0.5 V dc Output Voltage, VOUT(including I/O pins)(note 2) -0.5 V to VDD+0.5 V dc Input Diode Current, IIK(VIVDD) +/- 20 mA dc Output Diode Current, IOK(VOUTVDD) +/- 20 mA NOTE 1 Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Expos
19、ure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute maximum conditions is not implied. NOTE 2 Not to exceed 2.5 V. JEDEC Standard No. 8-7A Page 2 2.2 Recommended operating conditions 2.2.1 Normal range Symbol Param
20、eter Operating Range VDDPower Supply Voltage 1.65 V to 1.95 V TAOperating Temperature Note 1 NOTE 1 Specified by manufacture to be commercial, industrial, and/or military grade. 2.2.2 Wide range Symbol Parameter Operating Range VDDPower Supply Voltage 1.2 V to 1.95 V TAOperating Temperature Note 1 N
21、OTE 1 Specified by manufacture to be commercial, industrial, and/or military grade. 2.3 DC electrical characteristics 2.3.1 Normal range VDD (min)= 1.65 V and VDD (max)= 1.95 V across operating temperature range Symbol Parameter Test Condition MIN MAX Unit VDDSupply Voltage 1.65 1.95 V VIHInput High
22、 Voltage 0.65 VDDVDD+0.3 V VILInput Low Voltage -0.3 0.35 VDDV VOHOutput High Voltage IOH= -2 mA VDD-0.45 V VOLOutput Low Voltage IOL= 2 mA 0.45 V 2.3.2 Wide range VDD (min)= 1.2 V and VDD (max)= 1.95 V across operating temperature range Symbol Parameter Test Condition MIN MAX Unit VDDSupply Voltage
23、 1.2 1.95 V VIHInput High Voltage VOUT VOH (min)0.7 VDDVDD+0.3 V VILInput Low Voltage VOUT VOL (max)-0.3 0.3 VDDV VOHOutput High Voltage IOH= -100 uA VDD 0.2 V VOLOutput Low Voltage IOL= 100 uA 0.2 V JEDEC Standard No. 8-7A Page 3 2.4 Optional DC electrical characteristics for Schmitt trigger operat
24、ion 2.4.1 Optional Schmitt trigger operation - Normal range VDD (min)= 1.65 V and VDD (max)= 1.95 V across operating temperature range. Symbol Parameter Test Condition MIN MAX Unit VDDSupply Voltage - 1.65 1.95 V Vt+ (Vp) Positive Going Threshold Voltage VOUT VOH (min)0.4 VDD0.7 VDDV Vt- (Vn) Negati
25、ve Going Threshold Voltage VOUT VOL (max)0.3 VDD0.6 VDDV Vh (Vt) Hysteresis Voltage Vt+ - Vt- 0.1 VDD0.4 VDDV VOHOutput High Voltage IOH= -2 mA VDD-0.45 V VOLOutput Low Voltage IOL= 2 mA 0.45 V 2.4.2 Optional Schmitt trigger operation - Wide range VDD (min)= 1.2 V and VDD (max)= 1.95 V across operat
26、ing temperature range Symbol Parameter Test Condition MIN MAX Unit VDDSupply Voltage - 1.2 1.95 V Vt+ (Vp) Positive Going Threshold Voltage VOUT VOH (min)0.35 VDD0.75 VDDV Vt- (Vn) Negative Going Threshold Voltage VOUT VOL (max)0.25 VDD0.65 VDDV Vh (Vt) Hysteresis Voltage Vt+ - Vt- 0.1 VDD0.5 VDDV V
27、OHOutput High Voltage IOH= -100 uA VDD-0.2 V VOLOutput Low Voltage IOL= 100 uA 0.2 V JEDEC Standard No. 8-7A Page 4 3 Test conditions for optional Schmitt trigger operation 3.1 Positive Going Threshold Voltage: Vt+ (Vp) As the input signal is raised from a ground level in the measurement circuit sho
28、wn in Figure 1, the input voltage value at which the output logic changed is determined as Vt+ (Vp). 3.2 Negative Going Threshold Voltage: Vt- (Vn) As the input signal is dropped from a power supply voltage level in the measurement circuit shown in Figure 1, the input voltage value at which the outp
29、ut logic changed is determined as Vt- (Vn). Figure 1 DC characteristic measurement circuit of Schmitt trigger input. JEDEC Standard No. 8-7A Page 5 Annex A Differences between JESD8-7A and JESD8-7 This table briefly describes most of the changes made to entries that appear in this standard, JESD8-7A
30、, compared to its predecessor, JESD8-7 (February 1997). If the change to a concept involves any words added or deleted (excluding deletion of accidentally repeated words), it is included. Some punctuation changes are not included. Page Description of change All Document renumbered to be consistent w
31、ith the JEDEC Style Manual, JM7 3 Added Section 2.4 to describe the DC electrical characteristics for optional Schmitt trigger operation. 4 Added Section 3 to provide the test conditions for optional Schmitt trigger operation JEDEC Standard No. 8-7A Page 6 Standard Improvement Form JEDEC JESD8-7A Th
32、e purpose of this form is to provide the Technical Committees of JEDEC with input from the industry regarding usage of the subject standard. Individuals or companies are invited to submit comments to JEDEC. All comments will be collected and dispersed to the appropriate committee(s). If you can prov
33、ide input, please complete this form and return to: JEDEC Attn: Publications Department 2500 Wilson Blvd. Suite 220 Arlington, VA 22201-3834 Fax: 703.907.7583 1. I recommend changes to the following: Requirement, clause number Test method number Clause number The referenced clause number has proven to be: Unclear Too Rigid In Error Other 2. Recommendations for correction: 3. Other suggestions for document improvement: Submitted by Name: Phone: Company: E-mail: Address: City/State/Zip: Date:
